Ostrich fern is popular for its erect stature and graceful arching fronds (leaves) that resemble huge ostrich feathers. Each frond of this widely grown fern is cut into numerous leaflets and subleaflets. It colonizes fairly fast by spreading rhizomes but rarely becomes invasive. Ostrich fern grows best in moist soil conditions but tolerates occasional drought when established. It's excellent around a pond or in a damp border.